Description
Thorne Arm is located extends NE off Revillagigedo Channel, on S coast of Revillagigedo I., Alex. Arch.
History
Named in 1880 by U.S. Coast and Geodetic Survey (USC&GS) for Captain Charles Thorne, commander of the steamer California which explored this area (U.S. Coast and Geodetic Survey, 1883, p. 77).